Modernizing the Family Office: Knowing When Your Family Needs Its Own Family Office

The recent sustained growth in family offices reflects not just a preference for customized investment management but also a structural shift in how wealthy families are managing their affairs. Yet whether a given family needs a family office remains surprisingly underexamined. Too often, families form an office reactively after a business sale, generational transition, or other inflection point without carefully considering if the model fits their needs or if a different structure would serve them better.

In this Insight we address the central questions of when a family office make sense, what problems a family office is designed to solve, and when families should consider other approaches.

WHAT IS A FAMILY OFFICE?

A family office is a dedicated platform, usually one or more private entities, that centralizes management of a family’s financial, administrative, and strategic affairs. At its core, the family office provides coordination. It brings together investment management, tax planning, estate and trust administration, risk management, philanthropic oversight, and often personal and lifestyle services under a single structure with defined governance and accountability.

The number of single-family offices worldwide has grown to more than 8,000, a 31% increase since 2019, with collective family wealth approaching $5.5 trillion. By 2030, the number of single-family offices is projected to exceed 10,700.[1]

The distinction between a family office and a network of professional advisors is functional. A family’s accountants, attorneys, investment managers, and other advisors each bring specialized expertise. A family office adds an institutional layer that coordinates those advisors, owns processes, maintains records, manages workflows, and preserves institutional knowledge across generations.

When designed well, a family office ensures advisors work from the same assumptions and toward the same objectives, and that the family’s decision-making is supported by systems rather than any single relationship.

The scope of a family office varies widely. Some offices focus on investment management and financial reporting, while some others extend into estate planning coordination, tax compliance, philanthropic strategy, insurance management, real estate oversight, concierge services, and family governance.

The scope of a family office should reflect the family’s actual needs and priorities, not an aspirational list of services the family may never use.

COMMON REASONS FAMILIES FORM A FAMILY OFFICE

Families typically move toward a dedicated family office when one or more of the following conditions are present.

Investment complexity requires dedicated oversight. The family’s portfolio has expanded beyond public equities and fixed income into private equity, direct investments, co-investments, real estate, and alternatives that benefit from specialized monitoring and governance. A 2025 BlackRock Global Family Office Survey found that family offices now allocate 42% of their portfolios to alternative investments, up from 39% in prior years.[2] Managing this level of complexity alongside the family’s broader financial affairs is the type of challenge a family office is designed to address.

The family’s advisory relationships would benefit from a coordinating platform. Most sophisticated families work with a range of outside professionals: law firms, accountants, investment managers, insurance advisors, and estate planning specialists. A family office enhances those relationships by providing a central platform that ensures each advisor has context, strategies across disciplines are aligned, and nothing falls through the gaps between engagements. A 2026 JP Morgan Global Family Office Report found that top family office priorities include liquid financial asset management (89%), estate and tax planning (76%), and direct investments (72%), all of which involve multiple professional disciplines working in concert.[3]

A liquidity event is approaching or has occurred. The sale of a business, an initial public offering, or a significant inheritance has created or will create a concentration of wealth that requires deliberate structuring and professional management. The strongest outcomes occur when family office infrastructure is built before the liquidity event, not after.

Privacy and control have become priorities. The family needs confidential management of sensitive financial, personal, or reputational information that requires dedicated infrastructure and governance. A family office provides the institutional framework for managing privacy with the rigor high-profile families require.

Generational complexity is increasing. Multiple family branches, differing risk tolerances, geographic dispersion, or the involvement of a rising generation in governance and investment decisions require a structured platform for communication, decision-making, and conflict resolution. A 2025 KPMG Global Family Office Compensation Benchmark Report found that 44% of family offices now operate across multiple locations, up from 30% in 2023,[4] reflecting the coordination scale that multigenerational geographically dispersed families require.

SIGNS THE FAMILY HAS OUTGROWN AN INFORMAL STRUCTURE

Before a family office exists, most families manage wealth through trusted professional advisors, often anchored by a longstanding accountant, attorney, or financial advisor. This model serves many families well for years. The question is whether the family’s complexity has grown to where a formal coordinating structure would allow those advisors to deliver greater value.

Indicators that the family may benefit from a more formalized platform include:

• No single person or entity has a consolidated view of the family’s full financial position
• Investment strategy, tax planning, and estate planning are managed well individually but could benefit from tighter integration
• Decisions about significant investments are made without a consistent process for documentation and institutional memory
• Key knowledge about the family’s affairs is concentrated in a few individuals rather than captured in systems
• The family is spending more time on administrative coordination than strategic decisions

These are not criticisms of existing advisory relationships so much as signals that the family’s complexity has reached a level where a dedicated coordinating platform, working with and through the family’s existing advisors, would create meaningful value.

The purpose of a family office is to add that institutional layer: systems, governance, and accountability that amplify the effectiveness of every professional relationship the family maintains.

WHEN A FULL SINGLE-FAMILY OFFICE MAY BE TOO MUCH

Not every family with significant wealth needs a fully staffed single-family office. The industry consensus for a dedicated single-family office typically begins at $100 million to $250 million in investable assets, depending on the complexity of the family’s affairs. The 2026 JP Morgan Global Family Office Report found that operating costs vary by scale: offices managing $250 million or less average about $875,000 per year, while offices managing more than $1 billion average $6.6 million.[5] Staff costs represent about 67% of total operating expenses.[6]

Families below those thresholds, or families with significant assets but straightforward needs, may be better served by other models. A multifamily office shares infrastructure and professional talent across several families, reducing costs while providing institutional-quality services. An outsourced chief investment officer model provides professional portfolio management without internal infrastructure. A lean internal team of two or three professionals focused on coordination, governance, and vendor management can function effectively when supported by strong outside advisors.

The key insight is that complexity, not just asset size, should drive the decision. A $200 million portfolio concentrated in public equities with a single-generation family may require little formal structure. A $150 million portfolio with significant private market exposure, family members in multiple jurisdictions, and charitable vehicles in multiple countries presents a different coordination challenge.

Families should evaluate their complexity honestly before committing to a structure—and the associated costs—that may exceed their actual needs.

HOW TO THINK ABOUT COST, COMPLEXITY, AND CONTROL

The decision to form a family office is ultimately a governance and resource allocation question. The family should ask: what are we trying to coordinate, what level of control and customization do we require, what can we afford, and what value will the office create that we are not currently capturing?

Cost alone is not the right frame. The relevant comparison is not whether $1.5 million per year in operating costs is “expensive” in absolute terms, but whether that cost is justified by the value the office creates in coordinated tax planning, disciplined investment management, risk reduction, and operational efficiency. Families that approach the decision as a cost question often underinvest in governance and infrastructure, creating the very gaps the family office was intended to close.

Equally important is honest self-assessment. Does the family have the commitment and engagement to support a formal governance structure? Will principals attend investment committee meetings, review reports, and hold staff accountable? A family office is not a passive structure. It requires ongoing attention from the family, even where professional staff handle day-to-day operations. An office that exists on paper but lacks engaged principals is unlikely to deliver the coordination and accountability that justify its cost.

For many families, the best initial step is not to build a full office but conduct a structured assessment of current complexity, identify the gaps a family office would address, and evaluate which model (single-family office, multifamily office, hybrid, or outsourced) best fits the family’s current circumstances and foreseeable trajectory.

The strongest family offices are built deliberately, with a clear mandate, defined scope, and realistic expectations about both the benefits and the commitments involved.

KEY TAKEAWAYS

The growth of family offices globally reflects a broader recognition that wealth of sufficient complexity requires institutional management and a platform that coordinates advisors, creates accountability, and preserves institutional knowledge. The strongest family offices are built deliberately, not reactively, and are designed to match the family’s actual complexity rather than an aspirational model.

Families considering whether to establish a family office should focus less on asset thresholds and more on the nature and trajectory of their complexity, the diversity of their assets, the number of relevant jurisdictions, the involvement of multiple generations, and whether their current structure allows professional advisors to deliver maximum coordinated value.

A family office is not always the right answer, but when the conditions are present, a well-designed office can be one of the most durable structures a family builds.